ARM: spear6xx: Staticize few definitions

Fix warnings with clang like:

arch/arm/mach-spear/spear6xx.c:365:13: warning: no previous prototype for function 'spear6xx_map_io' [-Wmissing-prototypes]

by making few definitions static.
Reported-by: Nkernel test robot <lkp@intel.com>
Signed-off-by: NViresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: NArnd Bergmann <arnd@arndb.de>

arch/arm/mach-spear/spear6xx.c

@@ -340,7 +340,7 @@ static struct pl08x_platform_data spear6xx_pl080_plat_data = {
  * 0xD0000000		0xFD000000
  * 0xFC000000		0xFC000000
  */
-struct map_desc spear6xx_io_desc[] __initdata = {
+static struct map_desc spear6xx_io_desc[] __initdata = {
 	{
 		.virtual	= (unsigned long)VA_SPEAR6XX_ML_CPU_BASE,
 		.pfn		= __phys_to_pfn(SPEAR_ICM3_ML1_2_BASE),
@@ -360,12 +360,12 @@ struct map_desc spear6xx_io_desc[] __initdata = {
 };
 
 /* This will create static memory mapping for selected devices */
-void __init spear6xx_map_io(void)
+static void __init spear6xx_map_io(void)
 {
 	iotable_init(spear6xx_io_desc, ARRAY_SIZE(spear6xx_io_desc));
 }
 
-void __init spear6xx_timer_init(void)
+static void __init spear6xx_timer_init(void)
 {
 	char pclk_name[] = "pll3_clk";
 	struct clk *gpt_clk, *pclk;
@@ -395,7 +395,7 @@ void __init spear6xx_timer_init(void)
 }
 
 /* Add auxdata to pass platform data */
-struct of_dev_auxdata spear6xx_auxdata_lookup[] __initdata = {
+static struct of_dev_auxdata spear6xx_auxdata_lookup[] __initdata = {
 	OF_DEV_AUXDATA("arm,pl080", SPEAR_ICM3_DMA_BASE, NULL,
 			&spear6xx_pl080_plat_data),
 	{}